<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html lang="zh">
<head>
<title>源代碼</title>
<link rel="stylesheet" type="text/css" href="../../../../stylesheet.css" title="Style">
</head>
<body>
<div class="sourceContainer">
<pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a>
<span class="sourceLineNo">002</span> * Copyright (C) 2008-2009 Google Inc.<a name="line.2"></a>
<span class="sourceLineNo">003</span> * <a name="line.3"></a>
<span class="sourceLineNo">004</span> * Licensed under the Apache License, Version 2.0 (the "License"); you may not<a name="line.4"></a>
<span class="sourceLineNo">005</span> * use this file except in compliance with the License. You may obtain a copy of<a name="line.5"></a>
<span class="sourceLineNo">006</span> * the License at<a name="line.6"></a>
<span class="sourceLineNo">007</span> * <a name="line.7"></a>
<span class="sourceLineNo">008</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.8"></a>
<span class="sourceLineNo">009</span> * <a name="line.9"></a>
<span class="sourceLineNo">010</span> * Unless required by applicable law or agreed to in writing, software<a name="line.10"></a>
<span class="sourceLineNo">011</span> * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT<a name="line.11"></a>
<span class="sourceLineNo">012</span> * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the<a name="line.12"></a>
<span class="sourceLineNo">013</span> * License for the specific language governing permissions and limitations under<a name="line.13"></a>
<span class="sourceLineNo">014</span> * the License.<a name="line.14"></a>
<span class="sourceLineNo">015</span> */<a name="line.15"></a>
<span class="sourceLineNo">016</span><a name="line.16"></a>
<span class="sourceLineNo">017</span>package com.osfans.trime;<a name="line.17"></a>
<span class="sourceLineNo">018</span><a name="line.18"></a>
<span class="sourceLineNo">019</span>import org.xmlpull.v1.XmlPullParserException;<a name="line.19"></a>
<span class="sourceLineNo">020</span><a name="line.20"></a>
<span class="sourceLineNo">021</span>import android.content.Context;<a name="line.21"></a>
<span class="sourceLineNo">022</span>import android.content.res.Resources;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import android.content.res.TypedArray;<a name="line.23"></a>
<span class="sourceLineNo">024</span>import android.content.res.XmlResourceParser;<a name="line.24"></a>
<span class="sourceLineNo">025</span>import android.graphics.drawable.Drawable;<a name="line.25"></a>
<span class="sourceLineNo">026</span>import android.text.TextUtils;<a name="line.26"></a>
<span class="sourceLineNo">027</span>import android.util.Log;<a name="line.27"></a>
<span class="sourceLineNo">028</span>import android.util.TypedValue;<a name="line.28"></a>
<span class="sourceLineNo">029</span>import android.util.Xml;<a name="line.29"></a>
<span class="sourceLineNo">030</span>import android.util.DisplayMetrics;<a name="line.30"></a>
<span class="sourceLineNo">031</span>import android.view.KeyEvent;<a name="line.31"></a>
<span class="sourceLineNo">032</span><a name="line.32"></a>
<span class="sourceLineNo">033</span>import java.io.IOException;<a name="line.33"></a>
<span class="sourceLineNo">034</span>import java.util.ArrayList;<a name="line.34"></a>
<span class="sourceLineNo">035</span>import java.util.Arrays;<a name="line.35"></a>
<span class="sourceLineNo">036</span>import java.util.List;<a name="line.36"></a>
<span class="sourceLineNo">037</span>import java.util.Map;<a name="line.37"></a>
<span class="sourceLineNo">038</span>import java.util.HashMap;<a name="line.38"></a>
<span class="sourceLineNo">039</span>import java.util.StringTokenizer;<a name="line.39"></a>
<span class="sourceLineNo">040</span><a name="line.40"></a>
<span class="sourceLineNo">041</span>/** 從YAML中加載鍵盤配置，包含多個{@link Key 按鍵}。 */<a name="line.41"></a>
<span class="sourceLineNo">042</span>public class Keyboard {<a name="line.42"></a>
<span class="sourceLineNo">043</span><a name="line.43"></a>
<span class="sourceLineNo">044</span>    static final String TAG = "Keyboard";<a name="line.44"></a>
<span class="sourceLineNo">045</span><a name="line.45"></a>
<span class="sourceLineNo">046</span>    public static final int EDGE_LEFT = 0x01;<a name="line.46"></a>
<span class="sourceLineNo">047</span>    public static final int EDGE_RIGHT = 0x02;<a name="line.47"></a>
<span class="sourceLineNo">048</span>    public static final int EDGE_TOP = 0x04;<a name="line.48"></a>
<span class="sourceLineNo">049</span>    public static final int EDGE_BOTTOM = 0x08;<a name="line.49"></a>
<span class="sourceLineNo">050</span><a name="line.50"></a>
<span class="sourceLineNo">051</span>    /** 按鍵默認水平間距 */<a name="line.51"></a>
<span class="sourceLineNo">052</span>    private int mDefaultHorizontalGap;<a name="line.52"></a>
<span class="sourceLineNo">053</span>    <a name="line.53"></a>
<span class="sourceLineNo">054</span>    /** 默認鍵寬 */<a name="line.54"></a>
<span class="sourceLineNo">055</span>    private int mDefaultWidth;<a name="line.55"></a>
<span class="sourceLineNo">056</span><a name="line.56"></a>
<span class="sourceLineNo">057</span>    /** 默認鍵高 */<a name="line.57"></a>
<span class="sourceLineNo">058</span>    private int mDefaultHeight;<a name="line.58"></a>
<span class="sourceLineNo">059</span><a name="line.59"></a>
<span class="sourceLineNo">060</span>    /** 默認行距 */<a name="line.60"></a>
<span class="sourceLineNo">061</span>    private int mDefaultVerticalGap;<a name="line.61"></a>
<span class="sourceLineNo">062</span><a name="line.62"></a>
<span class="sourceLineNo">063</span>    /** 鍵盤的Shift鍵是否按住 */<a name="line.63"></a>
<span class="sourceLineNo">064</span>    private boolean mShifted;<a name="line.64"></a>
<span class="sourceLineNo">065</span>    <a name="line.65"></a>
<span class="sourceLineNo">066</span>    /** 鍵盤的Shift鍵 */<a name="line.66"></a>
<span class="sourceLineNo">067</span>    public Key mShiftKey;<a name="line.67"></a>
<span class="sourceLineNo">068</span>    <a name="line.68"></a>
<span class="sourceLineNo">069</span>    /** Total height of the keyboard, including the padding and keys */<a name="line.69"></a>
<span class="sourceLineNo">070</span>    private int mTotalHeight;<a name="line.70"></a>
<span class="sourceLineNo">071</span>    <a name="line.71"></a>
<span class="sourceLineNo">072</span>    /** <a name="line.72"></a>
<span class="sourceLineNo">073</span>     * Total width of the keyboard, including left side gaps and keys, but not any gaps on the<a name="line.73"></a>
<span class="sourceLineNo">074</span>     * right side.<a name="line.74"></a>
<span class="sourceLineNo">075</span>     */<a name="line.75"></a>
<span class="sourceLineNo">076</span>    private int mTotalWidth;<a name="line.76"></a>
<span class="sourceLineNo">077</span>    <a name="line.77"></a>
<span class="sourceLineNo">078</span>    /** List of keys in this keyboard */<a name="line.78"></a>
<span class="sourceLineNo">079</span>    public List&lt;Key&gt; mKeys, mComposingKeys;<a name="line.79"></a>
<span class="sourceLineNo">080</span><a name="line.80"></a>
<span class="sourceLineNo">081</span>    private int mMetaState;<a name="line.81"></a>
<span class="sourceLineNo">082</span>    <a name="line.82"></a>
<span class="sourceLineNo">083</span>    /** Width of the screen available to fit the keyboard */<a name="line.83"></a>
<span class="sourceLineNo">084</span>    private int mDisplayWidth;<a name="line.84"></a>
<span class="sourceLineNo">085</span><a name="line.85"></a>
<span class="sourceLineNo">086</span>    /** Height of the screen */<a name="line.86"></a>
<span class="sourceLineNo">087</span>    private int mDisplayHeight;<a name="line.87"></a>
<span class="sourceLineNo">088</span><a name="line.88"></a>
<span class="sourceLineNo">089</span>    /** Keyboard mode, or zero, if none.  */<a name="line.89"></a>
<span class="sourceLineNo">090</span>    private int mAsciiMode;<a name="line.90"></a>
<span class="sourceLineNo">091</span><a name="line.91"></a>
<span class="sourceLineNo">092</span>    // Variables for pre-computing nearest keys.<a name="line.92"></a>
<span class="sourceLineNo">093</span>    <a name="line.93"></a>
<span class="sourceLineNo">094</span>    private static final int GRID_WIDTH = 10;<a name="line.94"></a>
<span class="sourceLineNo">095</span>    private static final int GRID_HEIGHT = 5;<a name="line.95"></a>
<span class="sourceLineNo">096</span>    private static final int GRID_SIZE = GRID_WIDTH * GRID_HEIGHT;<a name="line.96"></a>
<span class="sourceLineNo">097</span>    private int mCellWidth;<a name="line.97"></a>
<span class="sourceLineNo">098</span>    private int mCellHeight;<a name="line.98"></a>
<span class="sourceLineNo">099</span>    private int[][] mGridNeighbors;<a name="line.99"></a>
<span class="sourceLineNo">100</span>    private int mProximityThreshold;<a name="line.100"></a>
<span class="sourceLineNo">101</span>    /** Number of key widths from current touch point to search for nearest keys. */<a name="line.101"></a>
<span class="sourceLineNo">102</span>    public static float SEARCH_DISTANCE = 1.4f;<a name="line.102"></a>
<span class="sourceLineNo">103</span><a name="line.103"></a>
<span class="sourceLineNo">104</span>    /**<a name="line.104"></a>
<span class="sourceLineNo">105</span>     * Creates a keyboard from the given xml key layout file.<a name="line.105"></a>
<span class="sourceLineNo">106</span>     * @param context the application or service context<a name="line.106"></a>
<span class="sourceLineNo">107</span>     */<a name="line.107"></a>
<span class="sourceLineNo">108</span>    public Keyboard(Context context) {<a name="line.108"></a>
<span class="sourceLineNo">109</span>      DisplayMetrics dm = context.getResources().getDisplayMetrics();<a name="line.109"></a>
<span class="sourceLineNo">110</span>      mDisplayWidth = dm.widthPixels;<a name="line.110"></a>
<span class="sourceLineNo">111</span>      mDisplayHeight = dm.heightPixels;<a name="line.111"></a>
<span class="sourceLineNo">112</span>      //Log.v(TAG, "keyboard's display metrics:" + dm);<a name="line.112"></a>
<span class="sourceLineNo">113</span><a name="line.113"></a>
<span class="sourceLineNo">114</span>      Config config = Config.get();<a name="line.114"></a>
<span class="sourceLineNo">115</span>      mDefaultHorizontalGap = config.getPixel("horizontal_gap");<a name="line.115"></a>
<span class="sourceLineNo">116</span>      mDefaultVerticalGap = config.getPixel("vertical_gap");<a name="line.116"></a>
<span class="sourceLineNo">117</span>      mDefaultWidth = (int)(mDisplayWidth * config.getDouble("key_width") / 100);<a name="line.117"></a>
<span class="sourceLineNo">118</span>      mDefaultHeight = config.getPixel("key_height");<a name="line.118"></a>
<span class="sourceLineNo">119</span>      mProximityThreshold = (int) (mDefaultWidth * SEARCH_DISTANCE);<a name="line.119"></a>
<span class="sourceLineNo">120</span>      mProximityThreshold = mProximityThreshold * mProximityThreshold; // Square it for comparison<a name="line.120"></a>
<span class="sourceLineNo">121</span><a name="line.121"></a>
<span class="sourceLineNo">122</span>      mKeys = new ArrayList&lt;Key&gt;();<a name="line.122"></a>
<span class="sourceLineNo">123</span>      mComposingKeys = new ArrayList&lt;Key&gt;();<a name="line.123"></a>
<span class="sourceLineNo">124</span>    }<a name="line.124"></a>
<span class="sourceLineNo">125</span><a name="line.125"></a>
<span class="sourceLineNo">126</span>    /**<a name="line.126"></a>
<span class="sourceLineNo">127</span>     * &lt;p&gt;Creates a blank keyboard from the given resource file and populates it with the specified<a name="line.127"></a>
<span class="sourceLineNo">128</span>     * characters in left-to-right, top-to-bottom fashion, using the specified number of columns.<a name="line.128"></a>
<span class="sourceLineNo">129</span>     * &lt;/p&gt;<a name="line.129"></a>
<span class="sourceLineNo">130</span>     * &lt;p&gt;If the specified number of columns is -1, then the keyboard will fit as many keys as<a name="line.130"></a>
<span class="sourceLineNo">131</span>     * possible in each row.&lt;/p&gt;<a name="line.131"></a>
<span class="sourceLineNo">132</span>     * @param context the application or service context<a name="line.132"></a>
<span class="sourceLineNo">133</span>     * @param characters the list of characters to display on the keyboard. One key will be created<a name="line.133"></a>
<span class="sourceLineNo">134</span>     * for each character.<a name="line.134"></a>
<span class="sourceLineNo">135</span>     * @param columns the number of columns of keys to display. If this number is greater than the <a name="line.135"></a>
<span class="sourceLineNo">136</span>     * number of keys that can fit in a row, it will be ignored. If this number is -1, the <a name="line.136"></a>
<span class="sourceLineNo">137</span>     * keyboard will fit as many keys as possible in each row.<a name="line.137"></a>
<span class="sourceLineNo">138</span>     * @param horizontalPadding 按鍵水平間距<a name="line.138"></a>
<span class="sourceLineNo">139</span>     */<a name="line.139"></a>
<span class="sourceLineNo">140</span>    public Keyboard(Context context, CharSequence characters, int columns, int horizontalPadding) {<a name="line.140"></a>
<span class="sourceLineNo">141</span>        this(context);<a name="line.141"></a>
<span class="sourceLineNo">142</span>        int x = 0;<a name="line.142"></a>
<span class="sourceLineNo">143</span>        int y = 0;<a name="line.143"></a>
<span class="sourceLineNo">144</span>        int column = 0;<a name="line.144"></a>
<span class="sourceLineNo">145</span>        mTotalWidth = 0;<a name="line.145"></a>
<span class="sourceLineNo">146</span><a name="line.146"></a>
<span class="sourceLineNo">147</span>        final int maxColumns = columns == -1 ? Integer.MAX_VALUE : columns;<a name="line.147"></a>
<span class="sourceLineNo">148</span>        for (int i = 0; i &lt; characters.length(); i++) {<a name="line.148"></a>
<span class="sourceLineNo">149</span>            char c = characters.charAt(i);<a name="line.149"></a>
<span class="sourceLineNo">150</span>            if (column &gt;= maxColumns <a name="line.150"></a>
<span class="sourceLineNo">151</span>                    || x + mDefaultWidth + horizontalPadding &gt; mDisplayWidth) {<a name="line.151"></a>
<span class="sourceLineNo">152</span>                x = 0;<a name="line.152"></a>
<span class="sourceLineNo">153</span>                y += mDefaultVerticalGap + mDefaultHeight;<a name="line.153"></a>
<span class="sourceLineNo">154</span>                column = 0;<a name="line.154"></a>
<span class="sourceLineNo">155</span>            }<a name="line.155"></a>
<span class="sourceLineNo">156</span>            final Key key = new Key(this);<a name="line.156"></a>
<span class="sourceLineNo">157</span>            key.x = x;<a name="line.157"></a>
<span class="sourceLineNo">158</span>            key.y = y;<a name="line.158"></a>
<span class="sourceLineNo">159</span>            key.width = mDefaultWidth;<a name="line.159"></a>
<span class="sourceLineNo">160</span>            key.height = mDefaultHeight;<a name="line.160"></a>
<span class="sourceLineNo">161</span>            key.gap = mDefaultHorizontalGap;<a name="line.161"></a>
<span class="sourceLineNo">162</span>            key.events[0] = new Event(this, String.valueOf(c));<a name="line.162"></a>
<span class="sourceLineNo">163</span>            column++;<a name="line.163"></a>
<span class="sourceLineNo">164</span>            x += key.width + key.gap;<a name="line.164"></a>
<span class="sourceLineNo">165</span>            mKeys.add(key);<a name="line.165"></a>
<span class="sourceLineNo">166</span>            if (x &gt; mTotalWidth) {<a name="line.166"></a>
<span class="sourceLineNo">167</span>                mTotalWidth = x;<a name="line.167"></a>
<span class="sourceLineNo">168</span>            }<a name="line.168"></a>
<span class="sourceLineNo">169</span>        }<a name="line.169"></a>
<span class="sourceLineNo">170</span>        mTotalHeight = y + mDefaultHeight; <a name="line.170"></a>
<span class="sourceLineNo">171</span>    }<a name="line.171"></a>
<span class="sourceLineNo">172</span><a name="line.172"></a>
<span class="sourceLineNo">173</span>    public List&lt;Key&gt; getKeys() {<a name="line.173"></a>
<span class="sourceLineNo">174</span>        return mKeys;<a name="line.174"></a>
<span class="sourceLineNo">175</span>    }<a name="line.175"></a>
<span class="sourceLineNo">176</span><a name="line.176"></a>
<span class="sourceLineNo">177</span>    public List&lt;Key&gt; getComposingKeys() {<a name="line.177"></a>
<span class="sourceLineNo">178</span>        return mComposingKeys;<a name="line.178"></a>
<span class="sourceLineNo">179</span>    }<a name="line.179"></a>
<span class="sourceLineNo">180</span><a name="line.180"></a>
<span class="sourceLineNo">181</span>    protected int getHorizontalGap() {<a name="line.181"></a>
<span class="sourceLineNo">182</span>        return mDefaultHorizontalGap;<a name="line.182"></a>
<span class="sourceLineNo">183</span>    }<a name="line.183"></a>
<span class="sourceLineNo">184</span>    <a name="line.184"></a>
<span class="sourceLineNo">185</span>    protected void setHorizontalGap(int gap) {<a name="line.185"></a>
<span class="sourceLineNo">186</span>        mDefaultHorizontalGap = gap;<a name="line.186"></a>
<span class="sourceLineNo">187</span>    }<a name="line.187"></a>
<span class="sourceLineNo">188</span><a name="line.188"></a>
<span class="sourceLineNo">189</span>    protected int getVerticalGap() {<a name="line.189"></a>
<span class="sourceLineNo">190</span>        return mDefaultVerticalGap;<a name="line.190"></a>
<span class="sourceLineNo">191</span>    }<a name="line.191"></a>
<span class="sourceLineNo">192</span><a name="line.192"></a>
<span class="sourceLineNo">193</span>    protected void setVerticalGap(int gap) {<a name="line.193"></a>
<span class="sourceLineNo">194</span>        mDefaultVerticalGap = gap;<a name="line.194"></a>
<span class="sourceLineNo">195</span>    }<a name="line.195"></a>
<span class="sourceLineNo">196</span><a name="line.196"></a>
<span class="sourceLineNo">197</span>    protected int getKeyHeight() {<a name="line.197"></a>
<span class="sourceLineNo">198</span>        return mDefaultHeight;<a name="line.198"></a>
<span class="sourceLineNo">199</span>    }<a name="line.199"></a>
<span class="sourceLineNo">200</span><a name="line.200"></a>
<span class="sourceLineNo">201</span>    protected void setKeyHeight(int height) {<a name="line.201"></a>
<span class="sourceLineNo">202</span>        mDefaultHeight = height;<a name="line.202"></a>
<span class="sourceLineNo">203</span>    }<a name="line.203"></a>
<span class="sourceLineNo">204</span><a name="line.204"></a>
<span class="sourceLineNo">205</span>    protected int getKeyWidth() {<a name="line.205"></a>
<span class="sourceLineNo">206</span>        return mDefaultWidth;<a name="line.206"></a>
<span class="sourceLineNo">207</span>    }<a name="line.207"></a>
<span class="sourceLineNo">208</span>    <a name="line.208"></a>
<span class="sourceLineNo">209</span>    protected void setKeyWidth(int width) {<a name="line.209"></a>
<span class="sourceLineNo">210</span>        mDefaultWidth = width;<a name="line.210"></a>
<span class="sourceLineNo">211</span>    }<a name="line.211"></a>
<span class="sourceLineNo">212</span><a name="line.212"></a>
<span class="sourceLineNo">213</span>    /**<a name="line.213"></a>
<span class="sourceLineNo">214</span>     * Returns the total height of the keyboard<a name="line.214"></a>
<span class="sourceLineNo">215</span>     * @return the total height of the keyboard<a name="line.215"></a>
<span class="sourceLineNo">216</span>     */<a name="line.216"></a>
<span class="sourceLineNo">217</span>    public int getHeight() {<a name="line.217"></a>
<span class="sourceLineNo">218</span>        return mTotalHeight;<a name="line.218"></a>
<span class="sourceLineNo">219</span>    }<a name="line.219"></a>
<span class="sourceLineNo">220</span>    <a name="line.220"></a>
<span class="sourceLineNo">221</span>    public int getMinWidth() {<a name="line.221"></a>
<span class="sourceLineNo">222</span>        return mTotalWidth;<a name="line.222"></a>
<span class="sourceLineNo">223</span>    }<a name="line.223"></a>
<span class="sourceLineNo">224</span><a name="line.224"></a>
<span class="sourceLineNo">225</span>  public boolean hasModifier(int modifiers) {<a name="line.225"></a>
<span class="sourceLineNo">226</span>    return (mMetaState &amp; modifiers) != 0;<a name="line.226"></a>
<span class="sourceLineNo">227</span>  }<a name="line.227"></a>
<span class="sourceLineNo">228</span><a name="line.228"></a>
<span class="sourceLineNo">229</span>  public boolean hasModifier() {<a name="line.229"></a>
<span class="sourceLineNo">230</span>    return mMetaState != 0;<a name="line.230"></a>
<span class="sourceLineNo">231</span>  }<a name="line.231"></a>
<span class="sourceLineNo">232</span><a name="line.232"></a>
<span class="sourceLineNo">233</span>  public boolean toggleModifier(int mask) {<a name="line.233"></a>
<span class="sourceLineNo">234</span>    boolean value = !hasModifier(mask);<a name="line.234"></a>
<span class="sourceLineNo">235</span>    if (value) mMetaState |= mask;<a name="line.235"></a>
<span class="sourceLineNo">236</span>    else mMetaState &amp;= ~mask;<a name="line.236"></a>
<span class="sourceLineNo">237</span>    return value;<a name="line.237"></a>
<span class="sourceLineNo">238</span>  }<a name="line.238"></a>
<span class="sourceLineNo">239</span><a name="line.239"></a>
<span class="sourceLineNo">240</span>  public int getModifer() {<a name="line.240"></a>
<span class="sourceLineNo">241</span>    return mMetaState;<a name="line.241"></a>
<span class="sourceLineNo">242</span>  }<a name="line.242"></a>
<span class="sourceLineNo">243</span><a name="line.243"></a>
<span class="sourceLineNo">244</span>  public boolean setModifier(int mask, boolean value) {<a name="line.244"></a>
<span class="sourceLineNo">245</span>    boolean b = hasModifier(mask);<a name="line.245"></a>
<span class="sourceLineNo">246</span>    if (b == value) return false;<a name="line.246"></a>
<span class="sourceLineNo">247</span>    if (value) mMetaState |= mask;<a name="line.247"></a>
<span class="sourceLineNo">248</span>    else mMetaState &amp;= ~mask;<a name="line.248"></a>
<span class="sourceLineNo">249</span>    return true;<a name="line.249"></a>
<span class="sourceLineNo">250</span>  }<a name="line.250"></a>
<span class="sourceLineNo">251</span><a name="line.251"></a>
<span class="sourceLineNo">252</span>  public boolean isAlted() {<a name="line.252"></a>
<span class="sourceLineNo">253</span>    return hasModifier(KeyEvent.META_ALT_ON);<a name="line.253"></a>
<span class="sourceLineNo">254</span>  }<a name="line.254"></a>
<span class="sourceLineNo">255</span><a name="line.255"></a>
<span class="sourceLineNo">256</span>  public boolean isShifted() {<a name="line.256"></a>
<span class="sourceLineNo">257</span>    return hasModifier(KeyEvent.META_SHIFT_ON);<a name="line.257"></a>
<span class="sourceLineNo">258</span>  }<a name="line.258"></a>
<span class="sourceLineNo">259</span><a name="line.259"></a>
<span class="sourceLineNo">260</span>  public boolean isCtrled() {<a name="line.260"></a>
<span class="sourceLineNo">261</span>    return hasModifier(KeyEvent.META_CTRL_ON);<a name="line.261"></a>
<span class="sourceLineNo">262</span>  }<a name="line.262"></a>
<span class="sourceLineNo">263</span><a name="line.263"></a>
<span class="sourceLineNo">264</span>  /**<a name="line.264"></a>
<span class="sourceLineNo">265</span>   * 設定鍵盤的Shift鍵狀態<a name="line.265"></a>
<span class="sourceLineNo">266</span>   * @param on 是否保持Shift按下狀態<a name="line.266"></a>
<span class="sourceLineNo">267</span>   * @param shifted 是否按下Shift<a name="line.267"></a>
<span class="sourceLineNo">268</span>   * @return Shift鍵狀態是否改變<a name="line.268"></a>
<span class="sourceLineNo">269</span>   */<a name="line.269"></a>
<span class="sourceLineNo">270</span>  public boolean setShifted(boolean on, boolean shifted) {<a name="line.270"></a>
<span class="sourceLineNo">271</span>    if (mShiftKey != null) mShiftKey.on = on;<a name="line.271"></a>
<span class="sourceLineNo">272</span>    return setModifier(KeyEvent.META_SHIFT_ON, on || shifted);<a name="line.272"></a>
<span class="sourceLineNo">273</span>  }<a name="line.273"></a>
<span class="sourceLineNo">274</span><a name="line.274"></a>
<span class="sourceLineNo">275</span>  public boolean resetShifted() {<a name="line.275"></a>
<span class="sourceLineNo">276</span>    if (mShiftKey != null &amp;&amp; !mShiftKey.on) return setModifier(KeyEvent.META_SHIFT_ON, false);<a name="line.276"></a>
<span class="sourceLineNo">277</span>    return false;<a name="line.277"></a>
<span class="sourceLineNo">278</span>  }<a name="line.278"></a>
<span class="sourceLineNo">279</span><a name="line.279"></a>
<span class="sourceLineNo">280</span>    private void computeNearestNeighbors() {<a name="line.280"></a>
<span class="sourceLineNo">281</span>        // Round-up so we don't have any pixels outside the grid<a name="line.281"></a>
<span class="sourceLineNo">282</span>        mCellWidth = (getMinWidth() + GRID_WIDTH - 1) / GRID_WIDTH;<a name="line.282"></a>
<span class="sourceLineNo">283</span>        mCellHeight = (getHeight() + GRID_HEIGHT - 1) / GRID_HEIGHT;<a name="line.283"></a>
<span class="sourceLineNo">284</span>        mGridNeighbors = new int[GRID_SIZE][];<a name="line.284"></a>
<span class="sourceLineNo">285</span>        int[] indices = new int[mKeys.size()];<a name="line.285"></a>
<span class="sourceLineNo">286</span>        final int gridWidth = GRID_WIDTH * mCellWidth;<a name="line.286"></a>
<span class="sourceLineNo">287</span>        final int gridHeight = GRID_HEIGHT * mCellHeight;<a name="line.287"></a>
<span class="sourceLineNo">288</span>        for (int x = 0; x &lt; gridWidth; x += mCellWidth) {<a name="line.288"></a>
<span class="sourceLineNo">289</span>            for (int y = 0; y &lt; gridHeight; y += mCellHeight) {<a name="line.289"></a>
<span class="sourceLineNo">290</span>                int count = 0;<a name="line.290"></a>
<span class="sourceLineNo">291</span>                for (int i = 0; i &lt; mKeys.size(); i++) {<a name="line.291"></a>
<span class="sourceLineNo">292</span>                    final Key key = mKeys.get(i);<a name="line.292"></a>
<span class="sourceLineNo">293</span>                    if (key.squaredDistanceFrom(x, y) &lt; mProximityThreshold ||<a name="line.293"></a>
<span class="sourceLineNo">294</span>                            key.squaredDistanceFrom(x + mCellWidth - 1, y) &lt; mProximityThreshold ||<a name="line.294"></a>
<span class="sourceLineNo">295</span>                            key.squaredDistanceFrom(x + mCellWidth - 1, y + mCellHeight - 1) <a name="line.295"></a>
<span class="sourceLineNo">296</span>                                &lt; mProximityThreshold ||<a name="line.296"></a>
<span class="sourceLineNo">297</span>                            key.squaredDistanceFrom(x, y + mCellHeight - 1) &lt; mProximityThreshold ||<a name="line.297"></a>
<span class="sourceLineNo">298</span>                            key.isInside(x, y) ||<a name="line.298"></a>
<span class="sourceLineNo">299</span>                            key.isInside(x + mCellWidth - 1, y) ||<a name="line.299"></a>
<span class="sourceLineNo">300</span>                            key.isInside(x + mCellWidth - 1, y + mCellHeight - 1) ||<a name="line.300"></a>
<span class="sourceLineNo">301</span>                            key.isInside(x, y + mCellHeight - 1)) {<a name="line.301"></a>
<span class="sourceLineNo">302</span>                        indices[count++] = i;<a name="line.302"></a>
<span class="sourceLineNo">303</span>                    }<a name="line.303"></a>
<span class="sourceLineNo">304</span>                }<a name="line.304"></a>
<span class="sourceLineNo">305</span>                int [] cell = new int[count];<a name="line.305"></a>
<span class="sourceLineNo">306</span>                System.arraycopy(indices, 0, cell, 0, count);<a name="line.306"></a>
<span class="sourceLineNo">307</span>                mGridNeighbors[(y / mCellHeight) * GRID_WIDTH + (x / mCellWidth)] = cell;<a name="line.307"></a>
<span class="sourceLineNo">308</span>            }<a name="line.308"></a>
<span class="sourceLineNo">309</span>        }<a name="line.309"></a>
<span class="sourceLineNo">310</span>    }<a name="line.310"></a>
<span class="sourceLineNo">311</span>    <a name="line.311"></a>
<span class="sourceLineNo">312</span>    /**<a name="line.312"></a>
<span class="sourceLineNo">313</span>     * Returns the indices of the keys that are closest to the given point.<a name="line.313"></a>
<span class="sourceLineNo">314</span>     * @param x the x-coordinate of the point<a name="line.314"></a>
<span class="sourceLineNo">315</span>     * @param y the y-coordinate of the point<a name="line.315"></a>
<span class="sourceLineNo">316</span>     * @return the array of integer indices for the nearest keys to the given point. If the given<a name="line.316"></a>
<span class="sourceLineNo">317</span>     * point is out of range, then an array of size zero is returned.<a name="line.317"></a>
<span class="sourceLineNo">318</span>     */<a name="line.318"></a>
<span class="sourceLineNo">319</span>    public int[] getNearestKeys(int x, int y) {<a name="line.319"></a>
<span class="sourceLineNo">320</span>        if (mGridNeighbors == null) computeNearestNeighbors();<a name="line.320"></a>
<span class="sourceLineNo">321</span>        if (x &gt;= 0 &amp;&amp; x &lt; getMinWidth() &amp;&amp; y &gt;= 0 &amp;&amp; y &lt; getHeight()) {<a name="line.321"></a>
<span class="sourceLineNo">322</span>            int index = (y / mCellHeight) * GRID_WIDTH + (x / mCellWidth);<a name="line.322"></a>
<span class="sourceLineNo">323</span>            if (index &lt; GRID_SIZE) {<a name="line.323"></a>
<span class="sourceLineNo">324</span>                return mGridNeighbors[index];<a name="line.324"></a>
<span class="sourceLineNo">325</span>            }<a name="line.325"></a>
<span class="sourceLineNo">326</span>        }<a name="line.326"></a>
<span class="sourceLineNo">327</span>        return new int[0];<a name="line.327"></a>
<span class="sourceLineNo">328</span>    }<a name="line.328"></a>
<span class="sourceLineNo">329</span><a name="line.329"></a>
<span class="sourceLineNo">330</span>  public Keyboard(Context context, String name) {<a name="line.330"></a>
<span class="sourceLineNo">331</span>    this(context);<a name="line.331"></a>
<span class="sourceLineNo">332</span>    Map&lt;String,Object&gt; m = Config.get().getKeyboard(name);<a name="line.332"></a>
<span class="sourceLineNo">333</span>    mAsciiMode = (Integer)Key.getValue(m, "ascii_mode", 1);<a name="line.333"></a>
<span class="sourceLineNo">334</span>    int columns = (Integer)Key.getValue(m, "columns", 20);<a name="line.334"></a>
<span class="sourceLineNo">335</span>    int defaultWidth = (int)(Key.getDouble(m, "width", 0) * mDisplayWidth / 100);<a name="line.335"></a>
<span class="sourceLineNo">336</span>    if (defaultWidth == 0) defaultWidth = mDefaultWidth;<a name="line.336"></a>
<span class="sourceLineNo">337</span>    double height = Key.getDouble(m, "height", 0);<a name="line.337"></a>
<span class="sourceLineNo">338</span>    int defaultHeight = mDefaultHeight;<a name="line.338"></a>
<span class="sourceLineNo">339</span>    if (height &gt; 0) defaultHeight = (int)TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, (float)height, Resources.getSystem().getDisplayMetrics());<a name="line.339"></a>
<span class="sourceLineNo">340</span>    int rowHeight = defaultHeight;<a name="line.340"></a>
<span class="sourceLineNo">341</span>    List&lt;Map&lt;String,Object&gt;&gt; lm = (List&lt;Map&lt;String,Object&gt;&gt;)m.get("keys");<a name="line.341"></a>
<span class="sourceLineNo">342</span><a name="line.342"></a>
<span class="sourceLineNo">343</span>    int h_gap = m.containsKey("horizontal_gap") ? Key.getPixel(m, "horizontal_gap") : mDefaultHorizontalGap;<a name="line.343"></a>
<span class="sourceLineNo">344</span>    int v_gap = m.containsKey("vertical_gap") ? Key.getPixel(m, "vertical_gap") : mDefaultVerticalGap;<a name="line.344"></a>
<span class="sourceLineNo">345</span>    int x = h_gap/2;<a name="line.345"></a>
<span class="sourceLineNo">346</span>    int y = v_gap;<a name="line.346"></a>
<span class="sourceLineNo">347</span>    int row = 0;<a name="line.347"></a>
<span class="sourceLineNo">348</span>    int column = 0;<a name="line.348"></a>
<span class="sourceLineNo">349</span>    mTotalWidth = 0;<a name="line.349"></a>
<span class="sourceLineNo">350</span><a name="line.350"></a>
<span class="sourceLineNo">351</span>    final int maxColumns = columns == -1 ? Integer.MAX_VALUE : columns;<a name="line.351"></a>
<span class="sourceLineNo">352</span>    for (Map&lt;String,Object&gt; mk: lm) {<a name="line.352"></a>
<span class="sourceLineNo">353</span>      int gap = h_gap;<a name="line.353"></a>
<span class="sourceLineNo">354</span>      int w = (int)(Key.getDouble(mk, "width", 0) * mDisplayWidth / 100);<a name="line.354"></a>
<span class="sourceLineNo">355</span>      if (w == 0 &amp;&amp; mk.containsKey("click")) w = defaultWidth;<a name="line.355"></a>
<span class="sourceLineNo">356</span>      w -= gap;<a name="line.356"></a>
<span class="sourceLineNo">357</span>      if (column &gt;= maxColumns || x + w &gt; mDisplayWidth) {<a name="line.357"></a>
<span class="sourceLineNo">358</span>        x = gap/2;<a name="line.358"></a>
<span class="sourceLineNo">359</span>        y += v_gap + rowHeight;<a name="line.359"></a>
<span class="sourceLineNo">360</span>        column = 0;<a name="line.360"></a>
<span class="sourceLineNo">361</span>        row++;<a name="line.361"></a>
<span class="sourceLineNo">362</span>        if (mKeys.size() &gt; 0) mKeys.get(mKeys.size() - 1).edgeFlags |= Keyboard.EDGE_RIGHT;<a name="line.362"></a>
<span class="sourceLineNo">363</span>      }<a name="line.363"></a>
<span class="sourceLineNo">364</span>      if (column == 0) {<a name="line.364"></a>
<span class="sourceLineNo">365</span>        double heightK = Key.getDouble(mk, "height", 0);<a name="line.365"></a>
<span class="sourceLineNo">366</span>        if (heightK &gt; 0) {<a name="line.366"></a>
<span class="sourceLineNo">367</span>          rowHeight = (int)TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, (float)heightK, Resources.getSystem().getDisplayMetrics());<a name="line.367"></a>
<span class="sourceLineNo">368</span>        } else {<a name="line.368"></a>
<span class="sourceLineNo">369</span>          rowHeight = defaultHeight;<a name="line.369"></a>
<span class="sourceLineNo">370</span>        }<a name="line.370"></a>
<span class="sourceLineNo">371</span>      }<a name="line.371"></a>
<span class="sourceLineNo">372</span>      if (!mk.containsKey("click")){ //無按鍵事件<a name="line.372"></a>
<span class="sourceLineNo">373</span>        x += w + gap;<a name="line.373"></a>
<span class="sourceLineNo">374</span>        continue; //縮進<a name="line.374"></a>
<span class="sourceLineNo">375</span>      }<a name="line.375"></a>
<span class="sourceLineNo">376</span><a name="line.376"></a>
<span class="sourceLineNo">377</span>      final Key key = new Key(this, mk);<a name="line.377"></a>
<span class="sourceLineNo">378</span>      key.x = x;<a name="line.378"></a>
<span class="sourceLineNo">379</span>      key.y = y;<a name="line.379"></a>
<span class="sourceLineNo">380</span>      int right_gap = Math.abs(mDisplayWidth - x - w - gap/2);<a name="line.380"></a>
<span class="sourceLineNo">381</span>      key.width = (right_gap &lt;= mDisplayWidth / 100) ? mDisplayWidth - x - gap/2: w; //右側不留白<a name="line.381"></a>
<span class="sourceLineNo">382</span>      key.height = rowHeight;<a name="line.382"></a>
<span class="sourceLineNo">383</span>      key.gap = gap;<a name="line.383"></a>
<span class="sourceLineNo">384</span>      key.row = row;<a name="line.384"></a>
<span class="sourceLineNo">385</span>      key.column = column;<a name="line.385"></a>
<span class="sourceLineNo">386</span>      column++;<a name="line.386"></a>
<span class="sourceLineNo">387</span>      x += key.width + key.gap;<a name="line.387"></a>
<span class="sourceLineNo">388</span>      mKeys.add(key);<a name="line.388"></a>
<span class="sourceLineNo">389</span>      if (x &gt; mTotalWidth) {<a name="line.389"></a>
<span class="sourceLineNo">390</span>          mTotalWidth = x;<a name="line.390"></a>
<span class="sourceLineNo">391</span>      }<a name="line.391"></a>
<span class="sourceLineNo">392</span>    }<a name="line.392"></a>
<span class="sourceLineNo">393</span>    if (mKeys.size() &gt; 0) mKeys.get(mKeys.size() - 1).edgeFlags |= Keyboard.EDGE_RIGHT;<a name="line.393"></a>
<span class="sourceLineNo">394</span>    mTotalHeight = y + rowHeight + v_gap;<a name="line.394"></a>
<span class="sourceLineNo">395</span>    for (Key key: mKeys) {<a name="line.395"></a>
<span class="sourceLineNo">396</span>      if (key.column == 0) key.edgeFlags |= Keyboard.EDGE_LEFT;<a name="line.396"></a>
<span class="sourceLineNo">397</span>      if (key.row == 0) key.edgeFlags |= Keyboard.EDGE_TOP;<a name="line.397"></a>
<span class="sourceLineNo">398</span>      if (key.row == row) key.edgeFlags |= Keyboard.EDGE_BOTTOM;<a name="line.398"></a>
<span class="sourceLineNo">399</span>    }<a name="line.399"></a>
<span class="sourceLineNo">400</span>  }<a name="line.400"></a>
<span class="sourceLineNo">401</span><a name="line.401"></a>
<span class="sourceLineNo">402</span>  public boolean getAsciiMode() {<a name="line.402"></a>
<span class="sourceLineNo">403</span>    return mAsciiMode != 0;<a name="line.403"></a>
<span class="sourceLineNo">404</span>  }<a name="line.404"></a>
<span class="sourceLineNo">405</span>}<a name="line.405"></a>




























































</pre>
</div>
</body>
</html>
